The ARRL sells a plain black 11x17 inch grid map of North America for
$1. No color, no gray scale. Perfect for coloring in the grids as you
work/confirm them.
http://www.arrl.org/locate/gridinfo.html
A smaller version of the map is also in the ARRL Operating Manual and
perhaps in the ARRL handbook. I scanned, printed, and laminated the
page from my ARRL Operating Manual.
Wayne Estes W9AE
Oakland, Oregon, USA, CN81ik